.exercise-body { background: radial-gradient(circle at 78% 4%, rgba(211,168,92,.08), transparent 26%), #04090e; }
.exercise-header-actions { display:flex; align-items:center; gap:14px; }
.header-text-link { color:var(--muted); font-size:.78rem; font-weight:800; }
.header-text-link:hover { color:var(--lime); }
.exercise-hero { min-height:540px; display:grid; align-items:center; padding:140px 0 86px; border-bottom:1px solid var(--line); background: radial-gradient(circle at 78% 42%, rgba(211,168,92,.09), transparent 32%), linear-gradient(135deg,#050b11,#07131d); }
.exercise-hero__grid { display:grid; grid-template-columns:minmax(0,1.4fr) minmax(300px,.6fr); gap:clamp(36px,7vw,90px); align-items:end; }
.exercise-hero h1 { margin:0; max-width:780px; font-family:"Cormorant Garamond",Georgia,serif; font-size:clamp(4rem,8vw,7.5rem); font-weight:600; line-height:.82; letter-spacing:-.055em; }
.exercise-hero h1 + p { max-width:700px; margin:30px 0 0; color:#aeb7c0; font-size:1rem; }
.exercise-hero-card { padding:28px; border:1px solid rgba(211,168,92,.28); border-radius:14px; background:linear-gradient(145deg,rgba(211,168,92,.055),transparent 42%),#09131c; box-shadow:0 22px 65px rgba(0,0,0,.34); }
.exercise-hero-card span { color:#c99a50; font-size:.63rem; font-weight:900; letter-spacing:.13em; text-transform:uppercase; }
.exercise-hero-card strong { display:block; margin-top:12px; color:#f3e9d7; font-family:"Cormorant Garamond",Georgia,serif; font-size:2.6rem; font-weight:600; }
.exercise-hero-card p { margin:10px 0 0; color:#8d98a4; font-size:.76rem; line-height:1.6; }
.exercise-library-section { padding:80px 0 110px; }
.exercise-tools { display:flex; align-items:end; justify-content:space-between; gap:24px; }
.exercise-search { width:min(100%,560px); }
.exercise-search span { display:block; margin-bottom:8px; color:#8e98a4; font-size:.65rem; font-weight:850; letter-spacing:.1em; text-transform:uppercase; }
.exercise-search input { width:100%; min-height:52px; padding:0 18px; border:1px solid rgba(211,168,92,.2); border-radius:9px; outline:0; background:#071019; color:#f0ece5; font:700 .9rem Inter,sans-serif; }
.exercise-search input:focus { border-color:rgba(230,193,127,.72); box-shadow:0 0 0 3px rgba(211,168,92,.08); }
.exercise-tools > p { margin:0; color:#7f8a95; font-size:.72rem; }
.category-tabs { display:flex; gap:8px; margin-top:28px; padding-bottom:8px; overflow-x:auto; scrollbar-width:thin; }
.category-tab { flex:0 0 auto; min-height:40px; padding:9px 14px; border:1px solid rgba(255,255,255,.09); border-radius:999px; background:#08111a; color:#aeb7c0; font:850 .68rem Inter,sans-serif; cursor:pointer; white-space:nowrap; transition:160ms ease; }
.category-tab:hover { border-color:rgba(211,168,92,.35); color:#e7c781; }
.category-tab[aria-selected="true"] { border-color:#d3a85c; background:linear-gradient(110deg,#e1bd79,#b8873e); color:#171108; }
.exercise-section-heading { display:flex; align-items:end; justify-content:space-between; gap:26px; margin-top:48px; padding-bottom:24px; border-bottom:1px solid rgba(211,168,92,.13); }
.exercise-section-heading h2 { margin:6px 0 0; font-family:"Cormorant Garamond",Georgia,serif; font-size:clamp(2.7rem,5vw,4.6rem); font-weight:600; line-height:.9; letter-spacing:-.045em; }
.exercise-section-heading > p { max-width:440px; margin:0; color:#87929e; font-size:.76rem; text-align:right; }
.exercise-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; margin-top:26px; }
.exercise-card { min-width:0; display:flex; flex-direction:column; gap:18px; padding:22px; border:1px solid rgba(211,168,92,.13); border-radius:11px; background:linear-gradient(150deg,rgba(211,168,92,.025),transparent 44%),#09131c; box-shadow:0 14px 38px rgba(0,0,0,.2); transition:transform 160ms ease,border-color 160ms ease,box-shadow 160ms ease; }
.exercise-card:hover { transform:translateY(-3px); border-color:rgba(211,168,92,.42); box-shadow:0 20px 48px rgba(0,0,0,.3); }
.exercise-card__top { display:flex; justify-content:space-between; gap:16px; }
.exercise-card__index { color:#b8873e; font-size:.62rem; font-weight:950; letter-spacing:.12em; }
.exercise-card__motion { color:#727e8b; font-size:.59rem; font-weight:800; text-transform:uppercase; }
.exercise-card h3 { margin:0; color:#f2ece0; font-size:1.08rem; line-height:1.25; letter-spacing:-.02em; }
.exercise-card__meta { display:flex; flex-wrap:wrap; gap:7px; }
.exercise-card__meta span { padding:6px 8px; border:1px solid rgba(255,255,255,.07); border-radius:5px; color:#89939e; font-size:.59rem; font-weight:750; }
.exercise-card button { width:100%; min-height:42px; margin-top:auto; border:1px solid rgba(211,168,92,.35); border-radius:7px; background:rgba(211,168,92,.05); color:#dfbd7c; font:900 .68rem Inter,sans-serif; cursor:pointer; }
.exercise-card button:hover { background:linear-gradient(110deg,#e1bd79,#b8873e); color:#171108; }
.exercise-empty { grid-column:1/-1; padding:50px 24px; border:1px dashed rgba(211,168,92,.22); border-radius:12px; color:#8d98a4; text-align:center; }
.exercise-safety { margin-top:46px; padding:24px; border:1px solid rgba(211,168,92,.2); border-radius:10px; background:rgba(211,168,92,.035); }
.exercise-safety strong { color:#dbc18f; font-size:.82rem; }
.exercise-safety p { margin:8px 0 0; max-width:900px; color:#87919c; font-size:.72rem; line-height:1.65; }
.exercise-modal { width:min(1180px,calc(100% - 28px)); max-height:calc(100dvh - 28px); padding:0; border:1px solid rgba(211,168,92,.35); border-radius:16px; overflow:hidden; background:#071019; color:#f3eee6; box-shadow:0 30px 110px rgba(0,0,0,.72); }
.exercise-modal::backdrop { background:rgba(0,0,0,.78); backdrop-filter:blur(7px); }
.exercise-modal__panel { position:relative; display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); min-height:660px; max-height:calc(100dvh - 28px); overflow:auto; }
.exercise-modal__close { position:absolute; top:14px; right:14px; z-index:5; width:42px; height:42px; display:grid; place-items:center; border:1px solid rgba(255,255,255,.15); border-radius:50%; background:rgba(5,10,15,.86); color:#fff; font-size:1.5rem; cursor:pointer; }
.exercise-modal__visual { min-height:660px; display:grid; place-items:center; padding:34px; border-right:1px solid rgba(211,168,92,.16); background:radial-gradient(circle at 50% 42%,rgba(211,168,92,.13),transparent 40%),#040a10; }
.model-stage { width:min(100%,540px); aspect-ratio:1; position:relative; overflow:hidden; border:1px solid rgba(211,168,92,.24); border-radius:14px; background:radial-gradient(circle at 50% 42%,rgba(211,168,92,.08),transparent 42%),linear-gradient(160deg,#08131c,#03080c); box-shadow:inset 0 0 70px rgba(0,0,0,.38); }
.model-stage canvas { width:100%; height:100%; display:block; }
.model-stage__badge { position:absolute; top:14px; left:14px; padding:7px 9px; border:1px solid rgba(211,168,92,.28); border-radius:5px; background:rgba(3,8,12,.75); color:#d5b574; font-size:.56rem; font-weight:900; letter-spacing:.1em; text-transform:uppercase; }
.model-stage__replay { position:absolute; right:14px; bottom:14px; min-height:38px; padding:8px 12px; border:1px solid rgba(211,168,92,.38); border-radius:6px; background:rgba(4,9,14,.84); color:#e4c887; font:850 .62rem Inter,sans-serif; cursor:pointer; }
.model-stage__angle-controls { position:absolute; left:50%; bottom:14px; z-index:3; display:flex; align-items:center; gap:8px; max-width:calc(100% - 28px); padding:6px; border:1px solid rgba(211,168,92,.28); border-radius:999px; background:rgba(2,7,11,.88); backdrop-filter:blur(6px); transform:translateX(-50%); }
.model-stage__angle-controls[hidden] { display:none; }
.model-stage__angle-controls button { width:34px; height:34px; flex:0 0 34px; display:grid; place-items:center; border:1px solid rgba(211,168,92,.28); border-radius:50%; background:rgba(211,168,92,.06); color:#e6c783; font:900 1rem/1 Inter,sans-serif; cursor:pointer; }
.model-stage__angle-controls button:hover { background:linear-gradient(110deg,#e1bd79,#b8873e); color:#171108; }
.model-stage__angle-controls span { min-width:92px; overflow:hidden; color:#e2c98f; font-size:.55rem; font-weight:900; letter-spacing:.06em; text-align:center; text-overflow:ellipsis; text-transform:uppercase; white-space:nowrap; }
.exercise-modal__content { padding:clamp(38px,5vw,70px); align-self:center; }
.exercise-modal__content h2 { margin:7px 0 0; font-family:"Cormorant Garamond",Georgia,serif; font-size:clamp(3rem,5vw,5.3rem); font-weight:600; line-height:.88; letter-spacing:-.05em; }
.exercise-meta { display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }
.exercise-meta span { padding:8px 10px; border:1px solid rgba(211,168,92,.17); border-radius:6px; background:rgba(211,168,92,.04); color:#c4a66e; font-size:.64rem; font-weight:800; }
.exercise-instructions { display:grid; gap:10px; margin-top:32px; }
.exercise-instructions article { display:grid; grid-template-columns:32px 1fr; gap:14px; padding:14px 0; border-top:1px solid rgba(255,255,255,.07); }
.exercise-instructions article > span { width:30px; height:30px; display:grid; place-items:center; border-radius:50%; background:linear-gradient(135deg,#e2bd79,#b8873e); color:#171108; font-size:.58rem; font-weight:950; }
.exercise-instructions strong { color:#e9dfcf; font-size:.72rem; }
.exercise-instructions p { margin:4px 0 0; color:#8e99a5; font-size:.7rem; line-height:1.55; }
.exercise-modal__note { margin:24px 0 0; padding:13px 14px; border-left:2px solid #b8873e; background:rgba(211,168,92,.035); color:#7f8994; font-size:.64rem; line-height:1.55; }
@media (max-width:960px) { .exercise-hero__grid,.exercise-modal__panel { grid-template-columns:1fr; } .exercise-hero-card { max-width:560px; } .exercise-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } .exercise-modal__visual { min-height:430px; border-right:0; border-bottom:1px solid rgba(211,168,92,.16); } .model-stage { width:min(100%,430px); } .exercise-modal__content { padding-top:36px; } }
@media (max-width:680px) { .exercise-header-actions .header-text-link { display:none; } .exercise-hero { min-height:0; padding:118px 0 70px; } .exercise-hero h1 { font-size:clamp(3.7rem,17vw,5.5rem); } .exercise-tools,.exercise-section-heading { align-items:stretch; flex-direction:column; } .exercise-section-heading > p { text-align:left; } .exercise-grid { grid-template-columns:1fr; } .exercise-modal { width:calc(100% - 14px); max-height:calc(100dvh - 14px); } .exercise-modal__panel { max-height:calc(100dvh - 14px); } .exercise-modal__visual { min-height:360px; padding:20px; } .model-stage { width:min(100%,350px); } .exercise-modal__content { padding:30px 22px 36px; } .exercise-modal__content h2 { padding-right:26px; font-size:clamp(2.7rem,14vw,4rem); } }
@media (prefers-reduced-motion:reduce) { .exercise-card { transition:none; } }
.exercise-adobe-visual {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  border-radius: 20px;
  background: #0b0d10;
}
.exercise-adobe-visual[hidden] { display: none; }

.exercise-sketchfab { width:100%; height:100%; border:0; display:block; background:#02070b; }

/* Local WIP: preserve full human exercise video frame */
.model-stage.is-human-video { width:min(100%,680px); aspect-ratio:16/9; background:#000; }
.exercise-human-video { width:100%; height:100%; display:block; object-fit:contain; object-position:center; background:#000; }
@media (max-width:960px) { .model-stage.is-human-video { width:min(100%,680px); aspect-ratio:16/9; } }
@media (max-width:680px) { .exercise-modal__visual { padding:12px; min-height:260px; } .model-stage.is-human-video { width:100%; aspect-ratio:16/9; border-radius:10px; } }

/* Local WIP: live exercise wall */
.exercise-grid { grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.exercise-card--live { gap:13px; padding:16px; }
.exercise-card__preview { position:relative; width:100%; aspect-ratio:9 / 16; overflow:hidden; border:1px solid rgba(211,168,92,.18); border-radius:12px; background:#02070b; box-shadow:inset 0 0 48px rgba(0,0,0,.28); }
.exercise-card__canvas,.exercise-card__video { width:100%; height:100%; display:block; object-fit:contain; object-position:center; background:#02070b; }
.exercise-card__angle { position:absolute; top:8px; left:8px; padding:5px 7px; border:1px solid rgba(211,168,92,.28); border-radius:5px; background:rgba(2,7,11,.82); color:#e1bd79; font-size:.52rem; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.exercise-card--live button { margin-top:4px; }
@media (max-width:1100px) { .exercise-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (max-width:680px) { .exercise-grid { grid-template-columns:1fr; } .exercise-card--live { padding:13px; } }

.exercise-card__no-video { width:100%; height:100%; display:grid; place-items:center; padding:24px; color:#66717d; font-size:.68rem; font-weight:800; text-align:center; background:radial-gradient(circle at 50% 42%,rgba(255,255,255,.025),transparent 42%),#02070b; }
.exercise-video-unavailable { width:100%; height:100%; display:grid; place-items:center; padding:28px; color:#75808c; font-size:.75rem; font-weight:800; text-align:center; background:#02070b; }
.exercise-video-unavailable[hidden] { display:none; }
.model-stage.is-no-video .exercise-video-unavailable { display:grid; }

#exercise-model { display:none!important; }

/* Responsive Exercise Library: mobile -> laptop -> desktop -> TV */
.exercise-body { --exercise-shell:min(1240px,calc(100% - 40px)); }
.exercise-body .shell { width:var(--exercise-shell); }
.exercise-hero__grid { grid-template-columns:minmax(0,1.5fr) minmax(300px,.5fr); }
.exercise-card__preview { max-height:none; }

@media (min-width:1200px) {
  .category-tabs { flex-wrap:wrap; overflow:visible; scrollbar-width:none; }
  .category-tabs::-webkit-scrollbar { display:none; }
  .exercise-search { width:min(100%,640px); }
}

@media (min-width:1600px) {
  .exercise-body { --exercise-shell:min(1680px,calc(100% - clamp(80px,7vw,150px))); }
  .exercise-hero { min-height:660px; padding:160px 0 105px; }
  .exercise-hero__grid { grid-template-columns:minmax(0,1.58fr) minmax(360px,.42fr); gap:clamp(64px,7vw,130px); }
  .exercise-hero h1 { max-width:1080px; font-size:clamp(6rem,6.6vw,9rem); }
  .exercise-hero h1 + p { max-width:820px; font-size:1.12rem; }
  .exercise-hero-card { padding:36px; }
  .exercise-hero-card span { font-size:.72rem; }
  .exercise-hero-card strong { font-size:3.25rem; }
  .exercise-hero-card p { font-size:.88rem; }
  .exercise-library-section { padding:100px 0 140px; }
  .exercise-search { width:min(100%,720px); }
  .exercise-search input { min-height:58px; font-size:1rem; }
  .category-tabs { gap:10px; margin-top:34px; }
  .category-tab { min-height:44px; padding:10px 16px; font-size:.73rem; }
  .exercise-section-heading { margin-top:58px; padding-bottom:30px; }
  .exercise-section-heading h2 { font-size:clamp(3.7rem,4.2vw,5.4rem); }
  .exercise-section-heading > p { max-width:520px; font-size:.86rem; }
  .exercise-grid { grid-template-columns:repeat(4,minmax(0,1fr)); gap:22px; margin-top:32px; }
  .exercise-card--live { padding:18px; gap:15px; }
  .exercise-card h3 { font-size:1.16rem; }
  .exercise-card__meta span { font-size:.64rem; }
  .exercise-card button { min-height:46px; font-size:.72rem; }
  .exercise-modal { width:min(1540px,calc(100% - 56px)); }
  .exercise-modal__panel { min-height:760px; }
  .exercise-modal__visual { min-height:760px; }
  .exercise-modal__content h2 { font-size:clamp(4rem,4.5vw,6rem); }
}

@media (min-width:2200px) {
  .exercise-body { --exercise-shell:min(2600px,calc(100% - clamp(180px,12vw,460px))); }
  .exercise-hero { min-height:820px; padding:190px 0 130px; }
  .exercise-hero__grid { grid-template-columns:minmax(0,1.65fr) minmax(430px,.35fr); gap:clamp(90px,8vw,180px); }
  .exercise-hero h1 { max-width:1320px; font-size:clamp(8rem,5.4vw,11rem); }
  .exercise-hero h1 + p { max-width:980px; margin-top:38px; font-size:1.3rem; line-height:1.65; }
  .exercise-hero-card { padding:44px; border-radius:18px; }
  .exercise-hero-card span { font-size:.82rem; }
  .exercise-hero-card strong { margin-top:18px; font-size:4rem; }
  .exercise-hero-card p { margin-top:14px; font-size:1rem; }
  .exercise-library-section { padding:125px 0 170px; }
  .exercise-search { width:min(100%,820px); }
  .exercise-search span,.exercise-tools > p { font-size:.82rem; }
  .exercise-search input { min-height:66px; padding-inline:22px; font-size:1.08rem; }
  .category-tabs { gap:12px; margin-top:40px; }
  .category-tab { min-height:50px; padding:12px 19px; font-size:.82rem; }
  .exercise-section-heading { margin-top:70px; padding-bottom:36px; }
  .exercise-section-heading h2 { font-size:clamp(4.8rem,3.8vw,6.6rem); }
  .exercise-section-heading > p { max-width:650px; font-size:1rem; }
  .exercise-grid { gap:28px; margin-top:38px; }
  .exercise-card--live { padding:22px; gap:18px; border-radius:14px; }
  .exercise-card h3 { font-size:1.35rem; }
  .exercise-card__index,.exercise-card__motion { font-size:.7rem; }
  .exercise-card__meta span { padding:7px 10px; font-size:.72rem; }
  .exercise-card button { min-height:52px; font-size:.82rem; }
  .exercise-card__angle { top:11px; left:11px; padding:6px 9px; font-size:.62rem; }
  .exercise-safety { margin-top:60px; padding:32px; }
  .exercise-safety strong { font-size:1rem; }
  .exercise-safety p { max-width:1200px; font-size:.88rem; }
  .exercise-modal { width:min(1900px,calc(100% - 90px)); }
  .exercise-modal__panel { min-height:900px; }
  .exercise-modal__visual { min-height:900px; padding:48px; }
  .exercise-modal__content { padding:clamp(58px,5vw,100px); }
}

@media (max-width:1199px) {
  .category-tabs { flex-wrap:nowrap; overflow-x:auto; }
}

@media (max-width:680px) {
  .exercise-body { --exercise-shell:calc(100% - 24px); }
  .exercise-hero__grid { grid-template-columns:1fr; }
  .exercise-hero-card { width:100%; padding:22px; }
  .exercise-library-section { padding:58px 0 82px; }
  .category-tabs { margin-top:22px; }
}